The Dawn Nurseries & Garden Centre in Cheltenham

I've been a fan of dawns garden centre, unfortunately today I had a very unpleasant experience. A few weeks ago my friend purchased a hydrangea for me. I went to the garden centre this morning to buy some plants, and ask advice about the hydrangea. The leaves on the hydrangea were drooping, and on inspection inside the plant looked like a fungi. I asked a member of staff who I should speak to. An older man, I believe a manager, didn't even give me a chance to explain. He was arrogant and rude, an appropriate name would be Mr Angry. I will never shop in the garden centre or recommend then again.